In Windows XP, I right clicked the network icon in the taskbar, clicked disable but now I can't get it back on?

In Windows XP, I right clicked the network icon in the taskbar, clicked disable but now I can't get it back on?

I went to start menu, Connect to, chose Show all connections. I see Local Area Connection and Wireless Network Connection.

I right click the second one, click enable, it says "Enabling" but then says "Connection failed!".

The internet icon isn't in the taskbar either, it disappeared immediately after I clicked disable.

I have disabled firewall and then tried enabling, but still the same problem.

What do I do?